APA4863OI-TRG datasheet(10/17 Pages) ANPEC

Part #	APA4863OI-TRG

Description	Stereo 2.2W Audio Power Amplifier

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Manufacturer	ANPEC [Anpec Electronics Coropration]

Direct Link	http://www.anpec.com.tw

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10 / 17 page

Copyright

Rev. A.7 - Oct., 2009

APA4863

www.anpec.com.tw

10

Pin Description

NO.

TSSOP-20 TSSOP-20P

SOP-16

NAME

I/O

FUNCTION

1

SHUTDOWN

I

Shutdown mode control pin input, places entire IC in shutdown mode

when held high, IDD=0.5

µA.

2,7,19

2,7,9,10,11,

12,19

2,7,15

GND

-

Ground connection of circuitry.

3

+OUT A

O

A channel + output in BTL mode, high impedance in SE mode.

4,17

4,13

VDD

I

Supply voltage input.

5

-OUT A

O

A channel - output in BTL mode, + output in SE mode.

6

-INA

I

Input pin of channel A.

8

+INA

I

Non-inverting input of channel A, connected to bypass pin inside the

IC.

13

9

+IN B

I

Non-inverting input of channel B, connected to bypass pin inside the

IC.

14

10

BYPASS

-

Connect to voltage divider for internal mid-supply bias.

15

11

-IN B

I

Input pin of channel B.

16

12

-OUT B

O

B channel - output in BTL mode, + output in SE mode.

18

14

+OUT B

O

B channel + output in BTL mode, high impedance in SE mode.

20

16

HP-IN

I

Headphone control pin input, hold high for single-ended mode

operation.

9,10,11,12

-

NC

-

No connection.

Block Diagram

Note : * +INA and +INB pins are connected to Bypass pin inside the IC.

Ring

V

DD

50k

Ω

50k

Ω

- IN A

+ OUT A

R

L

100

µF

To HP-IN Circuit

8

Ω

20k

Ω

20k

Ω

20k

Ω

+ OUT B

R

L

8

Ω

20k

Ω

20k

Ω

20k

Ω

- OUT B

- OUT A

C

O

+

1k

Ω

100

µF

C

O

+

1k

Ω

C

S

0.1

µF

V

DD / 2

C

B

2.2

µF

+ IN A*

Bypass

- IN B

+ IN B*

GND

20k

Ω

R

F

20k

Ω

R

F

C

1

R

1

Audio

Input

20k

Ω

1

µF

C

1

R

1

Audio

Input

20k

Ω

1

µF

100k

Ω

Shutdown

HP-IN

To Control Pin on

Headphone Jack

100k

Ω

Headphone Jack

Sleeve

Control

Tip

V

DD

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